||Carbaryl, Propham and Chlorpropham: A Comparison of the Rates of Hydrolysis and Photolysis with the Rate of Biolysis.
Wolfe, N. L. ;
Zepp, R. G. ;
Paris, D. F. ;
||Environmental Research Lab., Athens, GA.
Water pollution ;
Reaction kinetics ;
Water chemistry ;
Carbamic acid/methyl-(naphthyl-ester) ;
Chem Hoe ;
Carbamic acid/isopropyl-N-phenyl ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||Alkaline hydrolysis half-lives, based on second-order alkaline hydrolysis rate constants, for carbaryl, propham (IPC), and chlorpropham (CIPC) at pH 9 (27 degrees) are 0.15>1 x 10 to the 4th power days, and >1 x 10 to the 4th power days, respectively. The direct photolysis half-life for carbaryl in sunlight is 6.6 days in distilled water. Calculated minimum half-lives for the direct photolysis of IPC and CIPC in a clear water body near the surface are 254 and 121 days, respectively. Half-lives, based on second-order fungal rate constants, for the IPC and CIPC are calculated under given conditions. Kinetic data on hydrolysis, photolysis, and biolysis are employed as a basis for comparison of the relative importance of these three degradation processes.
||Pub. in Water Research, v12(8), p565-571 1978.
|NTIS Title Notes
||Reprint: Carbaryl, Propham and Chlorpropham: A Comparison of the Rates of Hydrolysis and Photolysis with the Rate of Biolysis.
|PUB Date Free Form
||7D; 8H; 68E; 68D; 99F; 48G
||PC A02/MF A01